6777804377 has 2 divisors, whose sum is σ = 6777804378. Its totient is φ = 6777804376.

The previous prime is 6777804361. The next prime is 6777804389. The reversal of 6777804377 is 7734087776.

6777804377 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5633403136 + 1144401241 = 75056^2 + 33829^2 .

It is a cyclic number.

It is not a de Polignac number, because 6777804377 - 2⁴ = 6777804361 is a prime.

It is not a weakly prime, because it can be changed into another prime (6777804277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3388902188 + 3388902189.

It is an arithmetic number, because the mean of its divisors is an integer number (3388902189).

Almost surely, 2^6777804377 is an apocalyptic number.

It is an amenable number.

6777804377 is a deficient number, since it is larger than the sum of its proper divisors (1).

6777804377 is an equidigital number, since it uses as much as digits as its factorization.

6777804377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9680832, while the sum is 56.

The square root of 6777804377 is about 82327.4217803521. The cubic root of 6777804377 is about 1892.4729325965.

The spelling of 6777804377 in words is "six billion, seven hundred seventy-seven million, eight hundred four thousand, three hundred seventy-seven".